28913220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{7649}}^1$

素因数の和:7674

約数の個数: 96

約数和(自身を含む): 102816000

約数和(自身を除く): 73902780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 7649, 15298, 22947, 30596, 38245, 45894, 53543, 68841, 76490, 91788, 107086, 114735, 137682, 152980, 160629, 206523, 214172, 229470, 267715, 275364, 321258, 344205, 413046, 458940, 481887, 535430, 642516, 688410, 803145, 826092, 963774, 1032615, 1070860, 1376820, 1445661, 1606290, 1927548, 2065230, 2409435, 2891322, 3212580, 4130460, 4818870, 5782644, 7228305, 9637740, 14456610, 28913220]

約数ペア:

[(1, 28913220), (2, 14456610), (3, 9637740), (4, 7228305), (5, 5782644), (6, 4818870), (7, 4130460), (9, 3212580), (10, 2891322), (12, 2409435), (14, 2065230), (15, 1927548), (18, 1606290), (20, 1445661), (21, 1376820), (27, 1070860), (28, 1032615), (30, 963774), (35, 826092), (36, 803145), (42, 688410), (45, 642516), (54, 535430), (60, 481887), (63, 458940), (70, 413046), (84, 344205), (90, 321258), (105, 275364), (108, 267715), (126, 229470), (135, 214172), (140, 206523), (180, 160629), (189, 152980), (210, 137682), (252, 114735), (270, 107086), (315, 91788), (378, 76490), (420, 68841), (540, 53543), (630, 45894), (756, 38245), (945, 30596), (1260, 22947), (1890, 15298), (3780, 7649)]